REYNOLDSBURG. Ohio
The American Jersey Cattle
Club's Research Foundation has
funded a project which may help
dairy producers leant more about
managing (he Jersey cow.
“Standards of Weight and
Height for Jersey and Guernsey
Heifers,” is an article by A J. Hein
richs and GJL Hargrove, both with
Pennsylvania State University,
which was published last year in
the "Journal of Dairy Science.”
In addition to new growth stan
dards, researchers showed that bet
ter managed herds with higher
milk production and reduced age at
first calving have heifers that ate
larger at all stages of development
OSCAR Daugther
Wildmead Oscar Nina Santa, VG-85
2 0 290 d 17,363 m 3.7% 640 f 3.3% 571 p
Michael Swartley & Clair & Pat Thrush, Ulster, PA
PROTEIN SIRES
9H1293 CURIOUS
9H1289 OSCAR
9H1279 DANCER
1H414 TESK
1H626 WHITE GOLD
9H1271 BALANCE
1H532 SANTA
1H406 SECRET
✓ 1H625 TOP SECRET
✓ 1H621 ADMIRER
9H939 FRONTIER
✓ New graduates
Northeentrat PA
J. Hershey Myer
Phone 717-523-3090
Jersey Association Offers Growth Charts
According to Heinrichs and
Hargrove, "White promotion of
large heifers isn't die issue, our
research shows that die greater
growth in heifers at a given age
may allow them to calve younger
to produce greater amounts of
milk."
Standard growth charts are
designed to help Jersey breeders
monitor heifer growth perfor
mance and allow closer scrutiny of
the various age groups on their
farms. Dairy producers should aim
at having their heifers fall within or
above the averagewtevel listed on
the growth Charts.
Previously, the only standards
available for measuring Jersey
Sire Power, Inc.
RR 2, Box 10, Tunkhannock, PA 18657
717-836-3168 • Fax: 717-836-1490
Representative
Earl Kepner
Phone 717-935-2485
Southcentral PA
Ed Qulnac Western PA
Phono: 814-847-2520 _ Rust Jacques
Phone: 814-425-2562
growth were 30 to 50 years old and
based on a limited number of
experimental herds.
The new study was designed to
develop a modem appraisal of the
growth of Jersey heifers and to
compare growth of heifers from
herds with above average milk
production to heifers in the entire
breed.
Forty-nine herds in Pennsylva
nia and New York, with a total of
1,564 Jersey heifers, participated.
The growth of these heifers, mea
sured in both weight and skeletal
height, was compared to the over
all management of the farm during
the past 12 months.
Information was gathered on the
Northeastern PA
Don Hibbard
Phone 717-836-3168
Direct Herd
Representative
Russell Jacques
717-587-2868
size of the-millongherd, herd aver
age milk, and average age at
calving.
According to the researchers,
their broad database allows the
results to be applied across a wide
range of the U.S. Jersey heifer
population.
The results of the new Jersey
growth standards were similar to
those recorded in past studies with
CURIOUS Daugther
Mor-Dale Cunous Gladys Geme, GP-80
2-6 187 d 12,166 m 3.6% 438 f 33% 399 p, Inc.
Ralph & Crystal Moyer, Myerstown, PA
♦TPI SIRES
CURIOUS
TESK
GLOW
OSCAR
TOP SECRET
AMBITION
BALANCE
RYAN
FRONTIER
SECRET
9H1293
1H414
9H1173
9H1289
/ 1H625
9H1294
9H1271
9H1253
9H939
1H406
♦TPI is preliminary
Southeastern PA
A NJ
Eldon Ford
Direct Herd
Representative
Nelson James
215-562-7117
Washington, Graan &
Fayatta Co. In PA
Jim Filer
Phone: 304-686-2100
lancatttf Farming, Saturday, February i, IW2-A23
MUC
irSHTNBS
YOU CAN MONK.
+1126
+1074
+lO6B
+lOl9
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+lOO5
+989
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. +982
+947
MARYLAND
Ted Ridgely
Phone; 301-898-9101
Technician Service
1-800-227-6417
Direct Herd
Representatives
Pete Bohacek
301-371-6834
Dave Elston
301-898-9101
the exception of animals from one
to six months: Jerseys up to six
months of age show larger weights
and heights than previously.
Weights mid heights of heifers
fronvsix to 24 months were similar
to the 1950 standards. Larger ani
mals in the very young segment
suggest that current mature
weights of older cows may be cor
respondingly larger.
I Jersey Breed
Averages
Balloon
REYNOLDSBURG,
Ohio During 1991,
Jerseys enrolled in
Dairy Herd Improve
ment Registry (DHIR)
averaged 14,544p0unds
milk. 680 pounds fat,
and 542 pounds protein,
shattering record aver
ages set the year before.
These mature equiva
lent (m.e.) avenges are
based on a total of
48,867 lactations for
milk and fat with 48,846
lactations for protein.
This production
shows an increase of 3.4
percent protein. 3.2 per
cent milk, and 2.7 per
cent fat over 1990 fig
ures. These figures
clearly show the great
est production increase
was in protein.
At the current rate of
increase 11.8
pounds protein and 273
pounds milk per year
the Jersey breed will
reach its goal of 650
pounds protein in the
year 2000 and boast a
17,000-pound milk
average.
In addition to a
record-high average for
the Jersey breed, the
1991 DHIR Lactation
Averages brought good
news for individual
herds. Two herds
surpassed the
20,000-pound level for
average milk production
this year. This marks the
first time in history a
Jersey herd has reached
this level of production.
As production levels
for Jerseys continue to
climb, the increase in
numbers of Jerseys is
also evident. At the end
of 1990, 156,288
Jerseys were enrolled in
Dairy Herd Improve
ment (DHI) testing
programs. This is an
increase of 2.6 percent
over the previous year
and a 17 percent
increase in the last five
years.
Semen sales also con
firm that Jersey popular
ity is on the rise in the
United States and
around the world.
Domestic semen sales
increased almost 12 per
cent from 1986 through
1990.